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package javax.mvc.event;

import javax.mvc.engine.ViewEngine;

/**
 * Event fired after a view engine has been selected but before its
 * {@link javax.mvc.engine.ViewEngine#processView(javax.mvc.engine.ViewEngineContext)}
 * method is called. Must be fired after {@link javax.mvc.event.ControllerRedirectEvent},
 * or if that event is not fired, after {@link javax.mvc.event.AfterControllerEvent}.
 *
 * For example:
 * 
    public class EventObserver {
 *         public void beforeProcessView(@Observes BeforeProcessViewEvent e) {
 *            ...
 *        }
 *    }
 *
 * @author Santiago Pericas-Geertsen
 * @see javax.enterprise.event.Observes
 * @since 1.0
 */
public interface BeforeProcessViewEvent extends MvcEvent {

    /**
     * Returns the view being processed.
     *
     * @return the view.
     */
    String getView();

    /**
    * Returns the {@link javax.mvc.engine.ViewEngine} selected by the implementation.
            *
            * @return the view engine selected.
            */
    Class getEngine();
}